Cleaning castings



UNITED STATES PATENT FFICE.

ANDREW RALSTON, OF TEST MIDDLETOVN, PENNSYLVANIA.

CLEANING CASTINGS.

Specicaton of Letters Patent No. 23,193, dated March 8, 1859.

To all whom it may concern:

Be it known that I, ANDREW RALsrON, of fest Middletown, in the county ofWashington and State of Pennsylvania., have invented a new and usefulImprovement in Machines for Cleaning and Dressing Castings; and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawingsand to the letters of reference marked thereon, similar lettersreferring to similar parts.

The nature of my invention consists in a mechanical arrangement forgiving to flexible pickers or scrapers for cleaning Or dressing castingsa reciprocating, alten nate, or oscillating motion, and also in anarrangement for bringing the castings to be cleaned, in contact with thepickers.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and Operation.

In the accompanying drawings Figure l, is a cut or sectional view of themachine. Fig. 2, is a side view. Figs. 3, t, and 5 are sectional viewsOf drums furnished with iiexible pickers which are used for cleaning Ordressing castings, such as hollow ware, pipes, &c. Figs. 6 and 7 arepickers.

(a) is the frame of the machine, is a drum furnished wit-h flexiblepickers (c), (d) is the driving pulley, (e) is the elevating anddepressing table, which is moved up and down in slides by means of lever(7c), lever (7c) is attached to an aXle (j), to the lever (lo) isattached the connecting rod (Z) which is connected with the elevatingand depressing table (e). The table (e) is furnished with three leaves(f, g, and 7L), the leaf (f) rests on table (e) and may be movedsidewise, the leaf (g) rests on leaf (f) and moves backward and forward,and the leaf (71,) rests on the ball (i) which is placed in a suitablerecess in leaf (g). The weight of the table may be balanced and thecastings held up to the pickers by a weight placed on the end of lever(la.) as represented at (n) in Fig. 2. The best form for pickers is thatrepresented in Fig. 6 and should be made thin enough to be iiexible;this form of pickers is best adapted for dressing flowered or carvedcastings. For cleaning plain castings steel or other wire may be made inbroom form as represented in Fig. 7 The mode of securing the pickers andbrushes, wires or brooms, te the drum is left to the judgment Of themechanic as a great variety of devices may be adopted for this purpose.By the reciprocating, alternate or oscillating movement of the drum, thepickers brushes or brooms are kept straight and in their true position.By the arrangement Of the table (e) with its leaves (f, g and h) anelevation, depression, side, back and fer-I ward movement and anydesired inclination Of the castings may be obtained, thereby bringingall parts of the casting or castings in contact with the pickers whichwill remove all the sand and other matter adhering to them.

The operation Of my improvement is as follows: The casting is placed onthe leaf (7i) and by proper movement of lever (lr) in connection withthe various movements of the leaves (f g and 7i) the casting may beadjusted and brought in contact with the pickers Or cleaner (c) on drum(c) and by the reciprocating alternate Or oscillating movement Of thedrum the sand and other matter is removed from the casting.

Having thus described the nature, construction, and Operation of myimprovement what I claim as Of my invention and desire to secure byLetters Patent of the United States is:

The combination of flexible pickers, brooms or brushes having areciprocating, alternate or oscillating movement, with an elevating anddepressing table, the whole being arranged, combined and operated asherein described and for the purpose set forth. i

ANDREW RALSTON.

Witnesses JAMES J. JOHNSTON, JAs. B. JOHNSTON.

